Fix new added account's order

CHANGELOG.md

@@ -69,6 +69,8 @@ and this project adheres to
 - Make sure the account shown in the left pane is immediatly updated 
   after changing display name or avatar in the accounty settings
 
+- When signing in a new account, correctly position it after the other
+  existing ones without needing a restart
 
 ## 0.5.0
 

TODO.md

@@ -3,7 +3,6 @@
 - fix cursor over field
 - update room highlight when creating new room
 - keyerror when forgetting room while loading members
-- account order, and verify not adding to config fiel works
 
 ## Refactoring
 

src/backend/backend.py

@@ -117,7 +117,7 @@ class Backend:
         password:   str,
         device_id:  Optional[str] = None,
         homeserver: str           = "https://matrix.org",
-        order:      int           = -1,
+        order:      Optional[int] = None,
    ) -> str:
         """Create and register a `MatrixClient`, login and return a user ID."""
 
@@ -131,6 +131,14 @@ class Backend:
             await client.close()
             raise
 
+        if order is None and not self.models["accounts"]:
+            order = 0
+        elif order is None:
+            order = max(
+                account.order
+                for i, account in enumerate(self.models["accounts"].values())
+            ) + 1
+
         self.clients[client.user_id]            = client
         self.models["accounts"][client.user_id] = Account(client.user_id,order)
         return client.user_id